Tom Dunn is now president of Arizona Builders Alliance. Formerly VP of the Southern Arizona branch, Dunn replaces Mark Mintner, who retired after serving as president for 25 years. Mintner was at ABA for a total of 41 years. The group is made up of 300 member companies in the construction and contractor industry. The ABA lobbies on behalf of the industry and engages in training, workforce development, government relations, management education and recruitment of members.